One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,8)(4,6)(5,7)(17,18,23,26,22,25,30,32)(19,20,27,28,21,24,29,31)(1,3,5,4)(2,6,7,8)(9,10)(11,14)(12,13)(15,16)(17,19,22,21)(18,24,25,20)(23,27,30,29)(26,31,32,28)(10,13)(14,16)(17,20,22,24)(18,19,25,21)(23,31,30,28)(26,29,32,27)(1,4,5,3)(2,6,7,8)(9,11)(10,14)(12,15)(13,16)(17,21,22,19)(18,24,25,20)(23,29,30,27)(26,31,32,28)(11,15)(14,16)(18,25)(19,21)(26,32)(27,29) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.